nginx/server.conf

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name server.exozy.me;

    ssl_certificate /etc/letsencrypt/live/exozy.me/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/exozy.me/privkey.pem;

    location / {
        proxy_pass http://localhost:6001;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto https;

        # websocket headers
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header X-Scheme $scheme;

        proxy_buffering off;
    }
}